Undertile
Heating
Radiant Floor Heating Systems |
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Before fitting Warmup’s Undertile Heater
there are several considerations you must
bear in mind with regards to heat:
• Will the undertile heater be the main heat
source in the room?
• Are you aware of how much time your floor
will take to heat up?
• Have you checked out the running
costs/power consumption?
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Heating
Capabilities
Warmup Undertile Heating Mats can be used as
the only heat source in rooms that comply
with insulation levels set out in current
building regulations and where 100% of the
floor area is covered by the heating system.
In rooms (such as bathrooms or kitchens)
where the entire floor is not covered, or in
rooms where the heat loss is very high (such
as conservatories), additional heating may
need to be installed
A heat loss calculation should be preformed
to determine exactly the amount of heat
required to heat the room. Then, by
measuring the area to be heated and using
the table below; you can calculate whether
additional heating is required. |
|
Heating
Mat |
kW
output |
|
PFM1.5 |
230 |
|
PFM02 |
345 |
|
PFM03 |
460 |
|
PFM04 |
667 |
|
PFM05 |
759 |
|
PFM06 |
897 |
|
PFM07 |
1012 |
|
PFM08 |
1265 |
|
PFM09 |
1380 |
|
PFM10 |
1518 |
|
PFM11 |
1633 |
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Heat-Up Times
Heat-up times depend on such variables as
the thickness of the tiles and the design of
the subfloor. |
|
Subfloor construction |
Heat-up time |
|
WBP
Plywood on timber |
1 hr |
|
Insulated concrete - insulation
under screed |
2 - 5
hrs |
|
Un-insulated concrete |
2 - 8
hrs |
|
Concrete with insulated tile
backer board- 10mm |
1 hr |
|
Concrete with insulated tile
backer board - 50mm |
0.5 hr |
|
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Layout
The Warmup Undertile Heating Mat is most
suitable for larger regular shaped areas.
The Warmup Installation Manual provides a
useful guide to heater layout; however it
may be necessary to alter this slightly to
suit your particular installation.
To work out how much matting you will need,
divide your floor space into rectangles (see
sample layout picture). From that you can
see how many mats you will need. The mat
must not be laid under permanent fixtures
(e.g. bathtubs, cupboards, etc), so exclude
these from your calculations.
Multiple Undertile Heating Mats
Before installing, ensure you have the
correct number and size of heaters for the
area you wish to heat. You may wire a
maximum of 25m˛ Heating Mat through one
Warmup TSTAT Thermostat with the mats
joining in parallel at the thermostat.
When laying more than one mat it is
important to remember the following:
• The mats are joined in parallel only at
the thermostat or in a junction box. DO NOT
attach one
mat to another in series.
• The heating wires of the mat may never be
shortened or cut.
• Never leave any surplus mat rolled up
underneath the flooring.
Areas in excess of 25 square
metres
If the area to be heated exceeds 25m˛, then
you must install Warmup Undertile Heating
Mat using multiple thermostats. |
